/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package delta.cart.web;

import delta.cart.bean.CartLocal;
import delta.cart.bean.InvalidPriceException;
import delta.cart.bean.InvalidQuantityException;
import entity.Product;
import facade.ProductFacadeLocal;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 *
 * @author Kate
 */
@WebServlet(name = "AddToCart", urlPatterns = {"/AddToCart"})
public class AddToCart extends HttpServlet {

    CartLocal cart;
    @EJB
    private ProductFacadeLocal productFacade;

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            HttpSession session = request.getSession();
            cart = (CartLocal) session.getAttribute("cart");

            Product p = productFacade.find(Integer.parseInt(request.getParameter("id_product")));
            int quantity = Integer.parseInt(request.getParameter("quantity"));

            try {
                cart.addProduct(p, quantity);


                out.print("" + cart.getCount() + "|" + cart.getTotalPrice());

            } catch (InvalidQuantityException ex) {
                 out.print("" + cart.getCount() + "|" + cart.getTotalPrice() + "|"
                        + "Can't proceed.Negavite quantities are not allowed");

            }
                catch (InvalidPriceException ex) {
                out.print("" + cart.getCount() + "|" + cart.getTotalPrice() + "|"
                        + "Can't proceed. Total price is too high. It must be less than 99999");
             
            }
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
